K oebis elmose clark



N. E. CLARK.

EXPANDED METAL REINFORCEMENT. APPLICATION FILED FEB. 12.1915.

Patented J My 8, 1919.

WITNESSES ZTTOBNEY UNITED. STATES BATENT OFFICE.

.N'ORRIS ELMORE CLARK, OF PLA INVILLE, CONNECTICUT, ASSIGNOR TO ROBERT S.

' ALLYN, TRUSTEE.

Original application filed March 2, 1909, Serial No. $8 0,796. Divided and this application filed February 12,-

Sbecification of Letters Patent.

PatentecLJuly- 8, 1919.

1915. Serial-No.73.

To all'whom. it may ('onccmz:

Be it known that I, Nonnrs Emronr. CLARK, a citizen of the United States of America, and residing at Plainville, in the county of Hartford and State of Connecticut, have inyented new and useful Improvements in EX- pended-Metal Reinforcenients,-of which the followin is a s )ecification.

m 3 ll11S 1l1V(-3l1l31011 relates particularly to expanded metal fabrics hav ng ribbed, corrugated 0r grooved beams. tension members or ribs. These beam members are preferably their-sides between the front and rear edges relatively deep and comparatively narrow. The expanded meshwork portion forms a lathing substantially all in one plane and s the beam members project from this plane.

The main object of my invention is to improve a fabric of this character so that the beams will be capable of affording the maximum reinforcement. Another object is to rovide means for scourino lathin" or p h b other reinforcing members to the beams or for fastening the beams to other elements.

According to the preferred form of the invention'the beams are provided with relatively small perforations or indentations in so as to permit plaster or cement to pass through and be interlocked from one side to the other. I also may provide fingers secured to the sides of the beams for theattiLClllIlBllt of 'lathing or other purposes.

I of rods or other members secured-to the beams] at intervals. These rods may be passed through holes punched in the sides of thebeams so that they practically become a patfiz'ii f the fabric.-

s the beams are relatiy'el'yi lcep and narrow, these rods passing through holes in the beams prevent the sides of the beams from sl-n'cading. The rods also conne adjacent beams and thus prevent them from separating or approach i mg. each other; Adjacent sheets of the fabric with their beams overlapped 0r interlocked, as iscommon. may also be locked together by these rods passing through the beams.-

l lgure 1, illustrates fragments of a fabric embodying my invention and having holes in the beams. rods extending through some of these holes and also att-achingfingers.

1 1g. 2, 1s a side view showing one of the beams with the holes in the sides and also attaching fingers.

Fig. 3. is a sectional view of the fabric of Fig. 1 showing a transverse reinforcing rod extending through the beams and showing a section of lathing attached to the beams by means of fingers.

Fig. 4, is a sectional view of a fabric showi beams such as 11, 11 of suitable cross sectiQn preferably relatively deep and narrow and open at 12 at the face adjacent the expanded meshwork and closed at 13 at the folded edges or apices. The sides of the beams in the form shown are perforated as at 14, 15 and 16. I 1

Rods such-as 17 are secured to the beams, for instance,.by assiug the rods through holes such as 14 either at the time of manua fac-ture or at the place where the fabric .is to be used.

The fingers 18 may be formed by.cuttin out portions of the sides of the beams an bendingthe portions outwardly either'at f the time of manufacture or when it is def;

sired to utilize such fingers.

These fingers 18 may be utilized for the attachment of additional lathiug such as 19. In the form shown in Fig. 5 the rib or:

beam member is formed from a special rolled sectionj having an enlargementzo ex 4 tendmgal'png' the apex.

In the 'form shown in Fig. (3 t-l10..fl\bl'ic is provided with enlarged sectional portions 21 at the base of the beam.

In the form shown in Fig. 7 the beam is ,1

" provided with reverse flauigcs By having holes in the sides of the beams the plaster orc'ement can interlock from side to side-and thus avoid thoformatimi of li'nw' of cleavage in the cement or plaster along the apices of the laeams. The beams thus give great transverse stiffness without danger of fracture. Some advan are is bad by L. indenting the sides so as to term recesses instead of having holes passed entirely thrr oh the beams. i

By having at least some of the perforationsin the different beams in line with each other, fastening clips, wires and devices or transverse reinforcing rods may be readily inserted. The transverse rods not only hold the sides of the beams together but prevent the dilieront beams from Separating from or approaching each other. 'ljhesc rods also prevent the beams from'tipping over or tilting. This is of especial importance in the erection of the fabric when the beams and meshworlr not reinforced by the pro ence oi the cement or plaster: When forming roots it is customary to place boards on top I of the fabric and utilize it as a flooring for the workmen and the transportation of materials. This brings great strain to bear uponthe fabric. The transverse rods connected to the beams as above described pro ventany failure of the fabric from the press- I 'cut in the holes, races.

ence of this additional load.

The projecting fingers may be utilized for attachment purposes for instance, the attachment of othor sheetsv or lathing. The spacing between the fingers will depend upon how rigid the connection of the lath or other member must be.

The interlocking of the cement or plaster or indentations in the "1. Reinforcing material for cemcntitious constructions comprising, a plurality of expanded metal sections and a plurality of. parallel relat, v

ely deep, non-expanded channel-lilzo -beam i'nenibers having transversely extending side walls, the expanded soctiojns integrally connecting the walls of the beam members and l'OtlS extending substantially at I right angles to the beam members and across the expanded sections, opposite faces oi each rod engagingthe opposite walls or the beam members to reinforce he expanded fabric at light angles lo its plane and to limit opening out of the channcldilte beam members-by strains in the plane of the fabric at 1 right angles to l'bc beam members.

2; An expanded re nforcing structure I eeann-e comprising, a plurality of non-expanded double-Walled beam members open at one edge and expanded sections integrally connecting the edges of the beam members and means for connecting the opposite Walls of each beam member at intervals to limit: the spreading of its walls,

3. In a fabric of the character described, a plurality of expanded metal sections integrally connected by relatively deep, nonexpanded, channel-shaped beam members, and a transverse stiffening member passing through said beam members in a plane substantially parallel to the plane of the expanded metal sections, thereby tending to sheet to inching members formed by punc maintain all the expanded metal sect-ions in a common plane,-

a, A metallic fabric comprising parallel, unexpanded relatively deep, channel-like beam members and meshwork connecting said beam members, said b'eam members consisting of folded unslitted'strips in channellike form with their sides extendingin planes substantially transverse to the general plane of the meshwork, the front. and rear edges of said beam members being continuous, unbroken and imperforate for affording material tensional resistance and the sides of said beam members between the front and rear edges being provided with bonding means to anchor the sides ofthe beams and prevent the formation of lines of cleavage in the cement along the closed edges of the beams, said meshwork consistingof a plurality of strands connected toform a plurality of relatlvely small openings.

A composite building construction comprising expanded metal sections in one plane,

folded ribs between the expanded metal sec tions and integral therewith, an expanded metal sheet ina plane parallel with said first mentioned plane, and fingers integral with said ribs and securing said expanded metal shecirto said ribs.

6. A composite building construction comprising cxpanded metal sections in one plane, folded ribs between the expanded metal sections and integral therewith, an expanded metal sheet in a plane parallel with said first; mentioned plane, fingers inte ml with said ribs and securing said expan ed metal said ribs and rods extending trans- Versely through said ribs between the planes of the expanded metal sections and the expanded metal respectively.

7. An expanded metal sheet having an unexpanded rib integral therewith metal at- 'ng holes in the rib and bending said members outwardly and a second expanded metal sheet secured to the rib of the first sheet by means of said attaching members.

8. A composite building construction comprismg an expanded metal fabnchavmg reinforcing lllOS pro ecting trom the reticulama poytion thereof. said ribs having pro gecting fingers integzi 1 therewith and a sheet of 1mm secured. to sand. fabric by said fi'nge-zs.

A building material compfising an. ex? pix-Mac metal fabric having unexpzmdad ribs projecting from. the reticulated. portion, said ribs having projecting fingers and a second sheet of fabric secured to the first by means of sand hngeis.

I' RE (FLA R15 BRADFORD 

